630261489 has 16 divisors (see below), whose sum is σ = 987263424. Its totient is φ = 352593600.

The previous prime is 630261469. The next prime is 630261497. The reversal of 630261489 is 984162036.

It is not a de Polignac number, because 630261489 - 2⁹ = 630260977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (630261409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734142 + ... + 734999.

It is an arithmetic number, because the mean of its divisors is an integer number (61703964).

Almost surely, 2^630261489 is an apocalyptic number.

It is an amenable number.

630261489 is a deficient number, since it is larger than the sum of its proper divisors (357001935).

630261489 is a wasteful number, since it uses less digits than its factorization.

630261489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469168.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 630261489 is about 25105.0092411853. The cubic root of 630261489 is about 857.3804774096.

The spelling of 630261489 in words is "six hundred thirty million, two hundred sixty-one thousand, four hundred eighty-nine".